Waterproof speaker

Abstract

The utility model provides a waterproof loudspeaker, contain one magnetic return subassembly, one loudspeaker seat subassembly, one waterproof diaphragm subassembly and one voice coil. Loudspeaker seat subassembly includes one seat body and a plurality of diaphragm catches, seat body is arranged on magnetic return subassembly and has a surrounding, diaphragm catch is arranged on seat body along surrounding interval, waterproof diaphragm subassembly includes a plurality of loudspeaker seat catches, a support and a waterproof diaphragm, loudspeaker seat catch and diaphragm catch each other catch, waterproof diaphragm is arranged on the support, voice coil is connected in waterproof diaphragm and is movably arranged in magnetic return subassembly. The utility model discloses a waterproof loudspeaker can pass through diaphragm catch and loudspeaker seat catch each other catch, make waterproof diaphragm stably arrange on seat body, thereby under the condition of having waterproof effect, increase waterproof diaphragm's effective vibration area, reach the effect of improving loudspeaker output volume, frequency and resolution.

Description

Technical Field

[0001] This invention provides a waterproof loudspeaker, and more particularly relates to a waterproof loudspeaker with a large effective vibration area. Background Technology

[0002] Loudspeakers are a common electronic product in vehicles, entertainment, and everyday life. Generally, to make loudspeakers waterproof, commercially available loudspeakers have a ring-shaped barrier around the outer perimeter of the top surface of the speaker mount assembly. This not only facilitates the positioning and assembly of the diaphragm assembly, thereby strengthening the bond with the speaker mount assembly, but also helps to limit the diaphragm assembly and prevent displacement caused by high-pressure impacts underwater. Utility Model Content

[0003] However, when the aforementioned annular barrier is set up, the diaphragm's position will be limited to the inner area of ​​the annular barrier, resulting in a smaller effective vibration area (i.e., the area where the diaphragm actually vibrates and produces sound) of the diaphragm of a typical waterproof loudspeaker. This not only limits the diameter of the voice coil connected to the diaphragm, but also affects the size of the magnet and the volume, frequency, and resolution produced.

[0004] The inventor then devoted himself to the research and development of a waterproof speaker with a larger effective vibration area, in order to improve the speaker's output volume, frequency and resolution.

[0005] This utility model provides a waterproof loudspeaker, comprising a magnetic return assembly, a speaker mount assembly, a waterproof diaphragm assembly, and a voice coil. The speaker mount assembly includes a body and a plurality of diaphragm locking members, wherein the body is disposed on the magnetic return assembly and has a circumference, and the diaphragm locking members are spaced apart on the body along the circumference; the waterproof diaphragm assembly includes a plurality of speaker mount locking members, a bracket, and a waterproof diaphragm, wherein the speaker mount locking members and the diaphragm locking members lock each other, and the waterproof diaphragm is disposed on the bracket; the voice coil is connected to the waterproof diaphragm and movably disposed on the magnetic return assembly.

[0006] In one embodiment, the aforementioned base includes multiple corner portions, and the diaphragm retainer is disposed on the corner portions.

[0007] In one embodiment, the aforementioned speaker mount assembly further includes two limiting members, and the mount body also includes a plurality of sides, with each corner portion and each side portion being staggered with each other. The limiting members are disposed on two opposite sides of each side portion and are spaced apart from the diaphragm retainer.

[0008] In one embodiment, the waterproof diaphragm further includes a spherical dome, and the voice coil is disposed on the spherical dome.

[0009] In one embodiment, the above-mentioned speaker mount assembly further includes an annular magnetic plate, which is fixed to the mount body and forms an opening, and the voice coil passes through the opening.

[0010] In one embodiment, the speaker mount assembly further includes a welding member fixed to the base and exposed from the bottom of the base, and the waterproof speaker further includes an electrical connector disposed on the magnetic return assembly and including a first weld portion, which is welded to the welding member.

[0011] In one embodiment, the aforementioned magnetic return assembly includes a magnetically conductive base plate, which includes a first step and a magnetically conductive body, wherein the magnetically conductive body is connected to the first step and has a first step difference with the first step. Furthermore, the waterproof speaker also includes an electrical connector, which includes a first solder joint disposed on the first step.

[0012] In one embodiment, the magnetically conductive base plate further includes a second step portion, which is connected to the first step portion and has a second step difference with the first step portion, and the second step difference is smaller than the first step difference. The electrical connector further includes a second weld portion, which is connected to the first weld portion and disposed on the second step portion.

[0013] Therefore, the waterproof speaker of this utility model can be stably positioned on the base by the diaphragm locking component and the speaker base locking component locking each other, thereby increasing the effective vibration area of ​​the waterproof diaphragm while maintaining waterproof effect, thus improving the speaker output volume, frequency and resolution. Attached Figure Description

[0014] Figure 1 This is a top view schematic diagram of an embodiment of the waterproof speaker of this utility model.

[0015] Figure 2 for Figure 1 An explosion diagram.

[0016] Figure 3 for Figure 2 A three-dimensional schematic diagram of the magnetic return component.

[0017] Figure 4 for Figure 3 A three-dimensional diagram from another angle.

[0018] Figure 5 for Figure 2 A three-dimensional schematic diagram of the speaker mount assembly.

[0019] Figure 6 for Figure 5 A three-dimensional diagram from another angle.

[0020] Figure 7 for Figure 2 A front view of the waterproof diaphragm assembly.

[0021] Figure 8 For along Figure 7 A cross-sectional view of the YY section.

[0022] Figure 9 for Figure 2 A three-dimensional schematic diagram of the electrical connectors in the diagram.

[0023] Figure 10 for Figure 9 A front view diagram.

[0024] Figure 11 for Figure 1 A front view diagram.

[0025] Figure 12 For along Figure 11 Schematic diagram of the cross-section of section ZZ.

[0026] Figure 13 For along Figure 1 Schematic diagram of the cross section of XX.

[0027] Figure 14 For along Figure 1 Schematic diagram of the cross-section of the MM section.

[0028] Figure Labels 1 waterproof speaker 100 magnetic return assembly 110 magnetic base plate 111 engaging protrusion 112 magnetic conductive body 114 First Stage 116 Second Stage 118 chamfered section 120 main magnet 130 pairs of magnets 140 main magnetic plate 200 speaker mount assembly 210 seats 212 side 214 corner 216 Avoidance Section 218 Magnetic Return Card Section 220 ring magnetic plate 226 opening 230 diaphragm clip 240 limit component 250 welded parts 300 waterproof diaphragm assembly 310 bracket 312 speaker mount card 316 diaphragm support 320 waterproof diaphragm 322 Joint 324 ball top 400 voice coil 410 voice coil body 420 wire 500 electrical connectors 510 First Welding Section 520 Second Welding Section 530 body D1 step difference D2 order difference MM section XX section YY cross section ZZ section Detailed Implementation To fully understand the purpose, features, and effects of this utility model, the following specific embodiments, in conjunction with the accompanying drawings, will provide a detailed description of this utility model: Please refer to Figure 1 and Figure 2 As shown in the figure, the waterproof speaker 1 of this embodiment can be used in underwater environments and includes a magnetic return assembly 100, a speaker mount assembly 200, a waterproof diaphragm assembly 300, and a voice coil 400. Additionally, the waterproof speaker 1 of this embodiment may also include an electrical connector 500. The speaker mount assembly 200 is disposed on the magnetic return assembly 100; the waterproof diaphragm assembly 300 is disposed on the speaker mount assembly 200; the voice coil 400 is connected to the waterproof diaphragm assembly 300 and movably disposed on the magnetic return assembly 100; the electrical connector 500 is disposed on the magnetic return assembly 100 and connected to the speaker mount assembly 200, and the electrical connector 500 may be a flexible printed circuit board (FPC).

[0029] Please refer to Figure 3 and Figure 4 As shown in the figure, the waterproof speaker 1 in this embodiment is a hybrid speaker combining an outer magnet and an inner magnet. The magnetic return assembly 100 may include a magnetically conductive base plate 110, a main magnet 120, and two auxiliary magnets 130. The main magnet 120 and the auxiliary magnets 130 may each be permanent magnets. The main magnet 120 is disposed in the central part of the top surface of the magnetically conductive base plate 110, and the auxiliary magnets 130 are disposed on the top surface of the magnetically conductive base plate 110 in a manner parallel to the main magnet 120 and located on opposite sides of the main magnet 120. Preferably, the magnetic return assembly 100 may also include a main magnetic plate 140, which is, for example, a washer and disposed on the main magnet 120.

[0030] Please refer to Figure 4As shown in the figure, the magnetically conductive base plate 110 may include a magnetically conductive body 112, two first-step portions 114, and a second-step portion 116. The magnetically conductive body 112 may be a thick plate structure. The first-step portion 114 is a flat plate structure and is connected to the magnetically conductive body 112. There may be a first step difference D1 between the bottom surface of the magnetically conductive body 112 and the bottom surface of the first-step portion 114. In addition, the second-step portion 116 may also be a thick plate structure. The second-step portion 116 is connected to the magnetically conductive body 112 and the first-step portion 114 and is disposed between each of the first-step portions 114. In this embodiment, the second-step portion 116 is disposed in the central part of one side of the magnetically conductive body 112, and the first-step portion 114 is symmetrically disposed with respect to the second-step portion 116. However, this utility model does not limit this. There may be a second step difference D2 between the bottom surface of the second-step portion 116 and the bottom surface of the first-step portion 114, and the second step difference D2 is smaller than the first step difference D1. Preferably, the magnetic base plate 110 may also be provided with a chamfered portion 118 at the connection between the first step 114 and the second step 116. With this configuration, when the electrical connector 500 is subsequently placed on the magnetic base plate 110, the electrical connector 500 can fit more closely to the bottom surface of the magnetic base plate 110, and the electrical connector 500 can be prevented from protruding outward and causing the waterproof speaker 1 to float up as a whole, thereby improving the positioning, fitting and welding efficiency of the electrical connector 500.

[0031] It is worth mentioning that, in some possible embodiments, the magnetically conductive base plate 110 may further include at least one engaging protrusion 111. In this embodiment, the magnetically conductive base plate 110 includes two engaging protrusions 111, and these engaging protrusions 111 are respectively positioned relative to the magnetically conductive body 112 along... Figure 4 The upper left and lower right sides of the middle protrude outwards to engage with the speaker mount assembly 200, thereby improving the overall structural tightness.

[0032] Please refer to Figure 5 and Figure 6 As shown in the figure, the speaker mount assembly 200 of this embodiment is used to connect the magnetic return assembly 100, the waterproof diaphragm assembly 300 and the voice coil 400, and may include a base 210, an annular magnetic plate 220, a plurality of diaphragm retaining members 230 and at least one welded member 250.

[0033] Please refer to Figure 5As shown in the figure, the base 210 may include multiple side portions 212 and multiple corner portions 214. Each side portion 212 and each corner portion 214 is staggered to form a ring structure. On two opposing side portions 212 (e.g., the two long sides), a relief portion 216 is formed longitudinally recessed to interact with the auxiliary magnet 130 of the magnetic return assembly 100, thereby reducing the additional volume occupied by the protrusion of the magnetic return assembly 100 and the electrical connector 500. Preferably, the base 210 may also form at least one magnetic return locking portion 218 on other side portions independent of the side portions forming the relief portions 216. The magnetic return locking portion 218 is, for example, a recess whose position and geometry correspond to the engagement protrusion 111, for engaging with the engagement protrusion 111 and improving the tightness of the connection between the magnetic return assembly 100 and the speaker base assembly 200.

[0034] On the other hand, the annular magnetic guide plate 220 is, for example, an annular washer and is disposed on the base 210 and two auxiliary magnets 130, supporting part of the waterproof diaphragm assembly 300 and forming an opening 226, which is used to accommodate the main magnet 120, the main magnetic guide plate 140 and the voice coil 400; the diaphragm locking member 230 is, for example, a protrusion used to lock with the waterproof diaphragm assembly 300, and in this embodiment there are, for example, four, arranged on the four corners 214 of the base 210. Please refer to Figure 14 As shown in the figure, preferably, the speaker mount assembly 200 may also include at least one limiting member 240 to further restrict the horizontal movement of the waterproof diaphragm assembly 300. In this embodiment, the speaker mount assembly 200 includes two limiting members 240. These limiting members 240 are, for example, blocks that protrude longitudinally relative to the seat body 210, and are disposed on the two shorter opposing sides 212 (e.g., the two shorter sides) and spaced apart from the diaphragm retainer 230. However, depending on the object, position, and orientation of the waterproof speaker 1, the number of limiting members 240 may be one or more, and they may also be disposed on the longer sides 212 (e.g., the two longer sides). Any structure that can enhance the positioning and bonding function between the speaker mount assembly 200 and the waterproof diaphragm assembly 300 is a possible type of limiting member 240.

[0035] In addition, please refer to Figure 6As shown in the figure, the welding component 250 is, for example, a welding piece. In this embodiment, there are two of them, which are embedded in two adjacent corners 214 of the base 210. They are used to engage with the electrical connector 500 to transmit the electrical energy or electrical signal provided by the electrical connector 500 to the voice coil 400, thereby controlling the sound output of the waterproof speaker 1. Preferably, positive and negative symbols indicating the installation direction of the electrical connector 500 can also be formed on the bottom surface of the base 210, which facilitates subsequent assembly operations. In addition, in some possible embodiments, the base 210, the annular magnetic plate 220, the diaphragm retainer 230, the limiting member 240, and the welding component 250 are all integrally formed by injection molding. This not only eliminates the process of assembling after separate molding, but also reduces the gap between the base 210, the annular magnetic plate 220, and the welding component 250 after assembly, further improving the working performance and stability underwater.

[0036] Please refer to Figure 7 and Figure 8 As shown in the figure, the waterproof diaphragm assembly 300 of this embodiment may include a plurality of speaker seat latches 312, a bracket 310 and a waterproof diaphragm 320. The bracket 310 is generally ring-shaped. The shape and number of speaker seat latches 312 correspond to the diaphragm latches 230. In this embodiment, the speaker seat latches 312 are recesses formed longitudinally by the bracket 310 and the waterproof diaphragm 320 and are respectively disposed at the four corners of the bracket 310 and the waterproof diaphragm 320. The waterproof diaphragm 320 is disposed on the bracket 310.

[0037] In the past, to make loudspeakers waterproof, an annular barrier was typically provided on the outer periphery of the top surface of the speaker mount assembly (equivalent to speaker mount assembly 200 in this embodiment), protruding relative to the top surface. The support for the waterproof diaphragm was then positioned on the inner edge of the annular barrier, allowing the two to fit together. While this design facilitates the positioning and assembly of the waterproof diaphragm assembly and improves the bonding strength between the waterproof diaphragm and the speaker mount assembly, the area enclosed by the annular barrier restricts the size of the support, resulting in a smaller effective vibration area of ​​the waterproof diaphragm. This, in turn, affects the volume, frequency, and distortion characteristics of the emitted sound.

[0038] Therefore, in this embodiment, the speaker mount assembly 200 is provided with a diaphragm retainer 230 to replace the annular barrier, and the assembly and connection between the speaker mount assembly 200 and the waterproof diaphragm assembly 300 is achieved through the retaining relationship between the diaphragm retainer 230 and the speaker mount retainer 312. With this configuration, the outer diameter of the bracket 310 can be expanded to be substantially equal to the outer diameter of the base 210, increasing the effective vibration area of ​​the waterproof diaphragm 320, and allowing for the use of a larger diameter voice coil 400 and magnetic return assembly 100, thereby improving the overall performance of the waterproof speaker 1. In addition, the top surface of the speaker mount assembly 200 can be flat to attach and connect with the bottom surface of the bracket 310. In other words, the bottom area of ​​the bracket 310 can be a connecting part.

[0039] On the other hand, please refer to Figure 8 As shown in the figure, the bracket 310 is generally L-shaped in cross-section, and a diaphragm support portion 316 is formed at the junction of the horizontal and vertical structures. The diaphragm support portion 316 is, for example, an annular groove. The waterproof diaphragm 320 is, for example, a dome diaphragm and includes a connecting portion 322 and a dome 324. The connecting portion 322 is an annular structure distributed along the periphery and extending longitudinally, while the dome 324 is a dome located in the center. In addition, the bracket 310 and the waterproof diaphragm 320 (including the dome 324) can be integrally molded by injection molding without subsequent assembly. The waterproof diaphragm 320 can be made of liquid silicone (LSR). Since the waterproof diaphragm 320 is made of soft material, the dome 324 made of PEN material is placed in the sound-emitting part of the waterproof diaphragm 320, so that the waterproof diaphragm 320 can generate sound through the high rigidity of the dome 324. In addition, since the waterproof diaphragm 320 is made of a soft material, the high-rigidity bracket 310 (which can be made of metal (such as stainless steel) or engineering plastic (such as ABS)) can help the waterproof diaphragm 320 withstand water pressure and is easy to fix on the speaker mount assembly 200.

[0040] Please refer to Figure 2 As shown in the figure, the voice coil 400 of this embodiment may include a voice coil body 410 and two wires 420, wherein the shape and size of the voice coil body 410 correspond to the main magnet 120 and the opening 226. When assembling a waterproof loudspeaker, the top side of the voice coil body 410 can be positioned on the dome 324, and the two wires 420 can extend from the base 210, the bracket 310, or the gap between the base 210 and the bracket 310 to receive external signals.

[0041] Please refer to Figure 9 and Figure 10As shown in the figure, the electrical connector 500 of this embodiment may include at least one first weld portion 510, at least one second weld portion 520, and a body portion 530, wherein the first weld portion 510 and the second weld portion 520 are weld points. In this embodiment, two first weld portions 510 are arranged on both sides of the body portion 530, and two second weld portions 520 are arranged on the body portion 530. Figure 10 As shown, the top surface of the first weld portion 510 and the top surface of the second weld portion 520 have a height difference, and the height difference can be equal to the first step difference D1; while the top surface of the second weld portion 520 protrudes from the top surface of the body portion 530 by another height difference, and this other height difference can be equal to the second step difference D2.

[0042] Please refer to Figures 11 to 13 As shown in the figure, after the various components of the waterproof speaker 1 are assembled, the waterproof diaphragm assembly 300 can be locked to the diaphragm locking member 230 of the speaker mount assembly 200 by the speaker mount locking member 312, so that the outer edges of the joint 322 of the base 210, the bracket 310 and the waterproof diaphragm 320 are substantially flush. This ensures the waterproof function and the bonding strength between the components while significantly increasing the size and effective vibration area of ​​the waterproof diaphragm 320. In addition, the voice coil body 410 is attached to the bottom side of the dome 324 and is movably inserted through the opening 226 and movably positioned in the magnetic gap between the main magnet 120 and the main magnetic plate 140 and the annular magnetic plate 220 and the auxiliary magnet 130, so that the internal space of the waterproof speaker 1 can be effectively utilized.

[0043] On the other hand, such as Figure 13 As shown, the first welding portion 510 of the electrical connector 500 is disposed on the first step 114 of the magnetic base plate 110 and is welded to the welding component 250, while the second welding portion 520 and the body portion 530 are disposed on the second step 116 and are welded to the wires (not shown) exposed on the bottom surface of the magnetic base plate 110. With this configuration, not only can the first welding portion 510 and the second welding portion 520 with adhesive backing adhere to the bottom surface of the magnetic base plate 110 from different positions such as both ends and the middle section, but also, due to the step design between the magnetic body 112, the first step 114, and the second step 116, the electrical connector 500 only protrudes slightly relative to the bottom side of the magnetic base plate 110, while simultaneously achieving the effect of welding to the welding component 250, which is beneficial for positioning and welding operations.

[0044] This utility model has been disclosed above with reference to preferred embodiments. However, those skilled in the art should understand that the above embodiments are only for describing this utility model and should not be construed as limiting the scope of this utility model. Furthermore, it should be noted that all variations and substitutions equivalent to the above embodiments should be considered to be covered within the scope of this utility model. Without causing conceptual contradictions or structural conflicts, the technical features of the above embodiments can be appropriately combined, substituted, omitted, and modified. Therefore, the protection scope of this utility model should be determined by the scope of the patent application.

Claims

1. A waterproof loudspeaker, characterized in that, Include: One magnetic return component; A speaker mount assembly, comprising: A body, which is disposed on the magnetic return assembly and has a surrounding area; and Multiple diaphragm retainers are spaced apart on the base body along the periphery; A waterproof diaphragm assembly, comprising: Multiple speaker mount locking components, each of which locks with its respective diaphragm locking component; A stent; and A waterproof diaphragm, which is mounted on the bracket; and A voice coil is connected to the waterproof diaphragm and is movably mounted on the magnetic return assembly.

2. The waterproof speaker according to claim 1, characterized in that, The base includes multiple corner sections, and each diaphragm retainer is disposed on each corner section.

3. The waterproof speaker according to claim 2, characterized in that, The speaker mount assembly also includes two limiting members, and the mount body also includes multiple sides, with each corner and each side being staggered. Each limiting member is disposed on two opposite sides of each side and is spaced apart from each diaphragm retainer.

4. The waterproof speaker according to claim 1, characterized in that, The waterproof diaphragm also includes a spherical top, and the voice coil is disposed on the spherical top.

5. The waterproof speaker according to claim 1, characterized in that, The speaker mount assembly also includes an annular magnetic plate, which is fixed to the mount and forms an opening, and the voice coil is movably inserted through the opening.

6. The waterproof speaker according to claim 1, characterized in that, The speaker mount assembly also includes a welded component fixed to the mount and protruding from the bottom of the mount, and the waterproof speaker also includes: An electrical connector disposed on the magnetic return assembly and including a first weld portion, the first weld portion being welded to the weldment.

7. The waterproof speaker according to claim 1, characterized in that, The magnetic return assembly includes: A magnetic base plate, comprising: The first stage; and A magnetically conductive body is connected to the first step and has a first step difference with the first step; The waterproof speaker also includes an electrical connector, which includes a first solder joint disposed on the first step.

8. The waterproof speaker according to claim 7, characterized in that, The magnetic base plate also includes a second step portion, which is connected to the first step portion and has a second step difference with the first step portion, and the second step difference is smaller than the first step difference. The electrical connector also includes a second weld portion, which is connected to the first weld portion and disposed on the second step portion.

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